v0.0.1 of dynamic_table_scroll

A high-performance 2D Flutter table with sticky headers & pinned columns, 2D bidirectional scrolling, horizontal virtualization, and auto-fit column widths. Changelog excerpt: Initial release of **dynamic_table_scroll**— a high-performance 2D data table widget for Flutter. ### Features - **Sticky Column Headers**: Freeze header titles at the top when scrolling vertically (`isHeaderPinned`). - **Pinned Frozen Columns**: Anchor one or multiple leading columns on the left when scrolling horizontally (`pinnedColumnCount`, `DynamicTableColumn.isPinned`). - **Anchored Top-Left Corner**: Stationary top-left corner cells on both scroll axes. - **Horizontal Column Virtualiza[...]